Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich risk increases when a catalyst's surface area decreases?
A)Reaction rate becomes mass-transport-limited✓
B)Product selectivity shifts towards undesired products
C)Catalyst undergoes irreversible thermal deactivation
D)Active metal leaching increases diffusion resistance
💡 Explanation
Mass-transport limitations increase when surface area drops, because the overall reaction rate becomes limited by the diffusion rate of reactants via the active site. Therefore, the reaction flux diminishes, rather than active metal loss or selectivity change, because those are kinetically influenced alone.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which risk increases within transformer cores under cyclical magnetization?
- Which consequence emerges if a silicon crystal lattice lacks sufficient orbital hybridization?
- Which risk increases when powdered aluminum is dispersed in air during industrial processing?
- Which consequence results when dielectric breakdown occurs in capacitive sensors?
- Which mechanism causes the precession of Mercury's orbit?
- Which consequence occurs when a molecular orbital's energy level lowers?
